Why should SHE systems only be useful in case of fire? We build SHE systems that can be deployed for daily ventilation whilst featuring a complete effective opening surface. So even in ventilation mode our devices open at an angle of 90 degrees. In order to withstand the stress of a daily venting operation the complete device (frame, movable parts, drive, etc) had to be designed accordingly. Our systems prove equal to this constant stress for years, as tests with more than 10,000 opening processes have asserted. Read more to find out which tests our systems have passed proving the high quality standards of our products.